/***
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *    
 *    Linking this library statically or dynamically with other modules 
 *    is making a combined work based on this library. Thus, the terms and
 *    conditions of the GNU General Public License cover the whole
 *    combination.
 *    
 *    As a special exception, the copyright holders of this library give 
 *    you permission to link this library with independent modules to 
 *    produce an executable, regardless of the license terms of these 
 *    independent modules, and to copy and distribute the resulting 
 *    executable under terms of your choice, provided that you also meet, 
 *    for each linked independent module, the terms and conditions of the 
 *    license of that module.  An independent module is a module which 
 *    is not derived from or based on this library.  If you modify this 
 *    library, you may extend this exception to your version of the 
 *    library, but you are not obligated to do so.  If you do not wish 
 *    to do so, delete this exception statement from your version.
 *
 *    Project: www.simpledbm.org
 *    Author : Dibyendu Majumdar
 *    Email  : d dot majumdar at gmail dot com ignore
 */
package org.simpledbm.samples.forum.client;

import org.simpledbm.samples.forum.client.RequestProcessor.ForumsView;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;

/**
 * Handles the forums view
 * 
 * @author dibyendumajumdar
 */
public class ForumsViewImpl extends Composite implements ForumsView {

    FlowPanel panel = new FlowPanel();
    private ForumsHandler forumSelectionHandler;

    public ForumsViewImpl() {
        initWidget(panel);
    }

    private void addForum(final Forum forum) {
        final HTML link = new HTML("<a href='javascript:;'>" + forum.getName()
                + "</a>");
        link.setTitle(forum.getDescription());
        panel.add(link);
        link.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                forumSelectionHandler.onForumSelect(link.getText());
            }
        });
    }

    public void showBusy() {
    }

    public void update(Forum[] forums) {
        panel.clear();
        panel.setStyleName("forums");
        panel.add(new HTML("<h2>Forums</h2>"));
        for (int i = 0; i < forums.length; i++) {
            addForum(forums[i]);
        }
    }

    public void setForumsHandler(ForumsHandler forumSelectHandler) {
        this.forumSelectionHandler = forumSelectHandler;
    }
}
